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DSAA 2023: Panel on Social media and misinformation

I had the honor to organize this year’s panel for the 10th IEEE International Conference on Data Science and Advanced Analytics (DSAA). While social media platforms have enabled global connectivity, empowering voices and democratizing information, they have also inadvertently become conduits for the spread of false narratives and misleading information....

Thu Oct 12, 2023 16:44
BU CS has its 40th birthday event

Today, we are commemorating the 40th anniversary of the Computer Science department at Boston University and I had the honor to represent the data group as the speaker. Here’s a historical snapshot from the inaugural annual report (thanks to the department chair Abraham Matta), indicating the establishment of the Computer Science department. Steve Homer...

Fri Sep 22, 2023 23:20
Congratulations to Mr. Kostas Sotiropoulos

Mr. Kostas Sotiropoulos, my PhD advisee, has successfully defended his thesis “Methods, Algorithms and Impossibility Results for Machine Learning on Graphs”. Defending a PhD thesis requires extensive research, critical thinking, and the ability to present and defend one’s ideas in front of a committee of experts. It is an impressive accomplishment that...

Sun May 14, 2023 02:10
The dome and the egg

Il Cattedrale di Santa Maria del Fiore in Florence is a masterpiece church. I read a story in John Kay’s book Obliquity [1] about the history of the dome that I find worth sharing with you here in case you don’t already know it. Filippo Brunelleschi was one of the architects competing for the commision […]

Fri Aug 21, 2020 00:13
Yet another proof that primes are infinite

In CS131, we see the “Proof from the Book” due to Euclide that the number of prime numbers is infinite. Here is another favorite proof that is based on elementary facts. Suppose that is a list of all the primes. From what we have learnt about the  sum of geometric progressions we know that for […]

Tue Mar 10, 2020 20:10
The densest subgraph problem with negative weights

Few days ago I uploaded on Arxiv our preprint “Novel Dense Subgraph Discovery Primitives: Risk Aversion and Exclusion Queries”.  This is joint work with Tianyi, Nao, and Jakub. In this paper we study the following extension of the densest subgraph problem (DSP) that is known to be solvable exactly in polynomial time on graphs with […]

Thu Apr 25, 2019 17:51

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